328346865 has 80 divisors (see below), whose sum is σ = 733898880. Its totient is φ = 136442880.

The previous prime is 328346861. The next prime is 328346867. The reversal of 328346865 is 568643823.

It is a happy number.

It is not a de Polignac number, because 328346865 - 2² = 328346861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 328346865.

It is not an unprimeable number, because it can be changed into a prime (328346861) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 25921 + ... + 36449.

It is an arithmetic number, because the mean of its divisors is an integer number (9173736).

Almost surely, 2^328346865 is an apocalyptic number.

328346865 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

328346865 is an abundant number, since it is smaller than the sum of its proper divisors (405552015).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

328346865 is a wasteful number, since it uses less digits than its factorization.

328346865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10564 (or 10555 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 328346865 is about 18120.3439536892. The cubic root of 328346865 is about 689.8864652516.

The spelling of 328346865 in words is "three hundred twenty-eight million, three hundred forty-six thousand, eight hundred sixty-five".